3654929294568 has 96 divisors (see below), whose sum is σ = 10016859576360. Its totient is φ = 1203861035520.

The previous prime is 3654929294563. The next prime is 3654929294573. The reversal of 3654929294568 is 8654929294563.

It is a happy number.

3654929294568 is a `hidden beast` number, since 3 + 6 + 5 + 492 + 92 + 9 + 45 + 6 + 8 = 666.

3654929294568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3654929294563) and next prime (3654929294573).

It can be written as a sum of positive squares in 4 ways, for example, as 825812022564 + 2829117272004 = 908742^2 + 1681998^2 .

It is a super-2 number, since 2×3654929294568² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 3654929294496 and 3654929294505.

It is not an unprimeable number, because it can be changed into a prime (3654929294561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1152846 + ... + 2939202.

Almost surely, 2^{3654929294568} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3654929294568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5008429788180).

3654929294568 is an abundant number, since it is smaller than the sum of its proper divisors (6361930281792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3654929294568 is a wasteful number, since it uses less digits than its factorization.

3654929294568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786707 (or 1786700 counting only the distinct ones).

The product of its digits is 1007769600, while the sum is 72.

The spelling of 3654929294568 in words is "three trillion, six hundred fifty-four billion, nine hundred twenty-nine million, two hundred ninety-four thousand, five hundred sixty-eight".